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EUGENE CHIA-SHIUH CHAUNG M.D.
NPI 1659715571
Internal Medicine - Infectious Disease in Webster, TX

Active since April 22, 2013PECOS EnrolledAccepts Medicare Assignment
905 W MEDICAL CENTER BLVD STE 304, WEBSTER, TX 77598(281) 724-8336 Get Directions Write a Review

NPPES record last updated: May 26, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: May 26, 2026, Apr 20, 2026, Apr 14, 2026 and 4 more (7 updates tracked since 2018).

About Eugene Chia-shiuh Chaung M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

EUGENE CHIA-SHIUH CHAUNG M.D. (NPI 1659715571) is an individual infectious disease provider in Webster, Texas, licensed in Texas (R7416) and active in the NPI registry since April 2013. He is enrolled in Medicare PECOS, is affiliated with Hca Houston Healthcare Clear Lake, and maintains 6 additional practice locations.

NPPES Registry Identity

NPI1659715571
Entity TypeIndividualMale
Primary Taxonomy207RI0200X
Provider Legal NameEUGENE CHIA-SHIUH CHAUNGCredential: M.D.
Location Address905 W MEDICAL CENTER BLVD STE 304Webster, TX 77598-4009
Mailing AddressPo Box 58538Webster, TX 77598-8538
Phone(281) 724-8336
Sole ProprietorYes
Medical School CMSTexas Tech University Health Science Center School Of MedicineGraduated 2013
Enumeration DateApril 22, 2013
Last NPPES UpdateMay 26, 20267 updates tracked since enumeration
NPPES CertifiedMay 26, 2026
✔ NPI 1659715571 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Infectious DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RI0200X
License✔ Licensed in TX · R7416
Definition
An internist who deals with infectious diseases of all types and in all organ systems. Conditions requiring selective use of antibiotics call for this special skill. This physician often diagnoses and treats AIDS patients and patients with fevers which have not been explained. Infectious disease specialists may also have expertise in preventive medicine and travel medicine.
Also ListedInternal MedicineTaxonomy 207R00000X · License R7416 (TX)
905 W MEDICAL CENTER BLVD STE 304, Webster, TX 77598
Open in Google Maps ↗

Secondary Practice Locations 6

Location 1600 N Kobayashi Ste 310Webster, TX 77598-4841 · Phone (281) 724-8336
Location 2600 N Kobayashi Ste 110Webster, TX 77598-4841 · Phone (281) 338-1701
Location 3500 N Kobayashi Ste CWebster, TX 77598-4722 · Phone (281) 816-3092
Location 4600 N Kobayashi Ste 309Webster, TX 77598-4841 · Phone (281) 724-8332
Location 511914 Astoria Blvd Ste 125Houston, TX 77089-6073 · Phone (832) 554-1005 · Fax (832) 742-0455
Location 6905 W Medical Center Blvd Ste 306Webster, TX 77598-4009 · Phone (281) 724-8332 · Fax (281) 724-8332

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Texas, Imperial Insurance Companies, Inc., Oscar Insurance Company and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Eugene Chia-shiuh Chaung M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID547553919
PECOS Enrollment IDI20180712000945, I20250918001967
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

4

Medicare enrollment records show Eugene Chaung reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Cls Health PLLC
0.1 mi
Pulmonary Disease
500 N KOBAYASHI STE A
Webster, TX 77598
  • Reassigned Medicare billing, Texas enrollment
  • 275 clinicians in this Medicare group
NPI 1750305355 (281) 724-1860
Legacy Community Health Services, Inc
21 mi
Federally Qualified Health Center (FQHC)
1415 CALIFORNIA ST
Houston, TX 77006
  • Reassigned Medicare billing, Texas enrollment
  • 402 clinicians in this Medicare group
NPI 1679524961 (832) 548-5000
Access Telecare, PLLC
244 mi
Internal Medicine
1717 MAIN ST STE 5850
Dallas, TX 75201
  • Reassigned Medicare billing, New Mexico and Texas enrollments
  • 180 clinicians in this Medicare group
NPI 1013303080 (972) 449-0540
St. Vincent Hospital
758 mi
Neurology
440 SAINT MICHAELS DR, SUITE 250
Santa Fe, NM 87505
  • Reassigned Medicare billing, Texas enrollment
  • 13 clinicians in this Medicare group
NPI 1831493584 (505) 913-3056

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
50 services49 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Hca Houston Healthcare Clear Lake

Acute Care Hospitals · Webster, TX
3/5 CMS rating
OwnershipProprietary
CMS Certification Number450617
Location500 W Medical Center BlvdWebster, TX 77598 · Harris County
Emergency services Birthing friendly

Houston Methodist Clear Lake Hospital

Acute Care Hospitals · Nassau Bay, TX
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number450709
Location18300 Houston Methodist DrNassau Bay, TX 77058 · Harris County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 77598 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$134.06 typical visit price
range $58.24 – $176.98
Typical copayment $33.51 (range $14.56 – $44.24)
Most-billed visit code 99204
Established Patient
$102.71 typical visit price
range $18.60 – $143.93
Typical copayment $25.67 (range $4.65 – $35.98)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 10

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

VIKAS JOGI MD
Internal Medicine (Infectious Disease)
905 W MEDICAL CENTER BLVD STE 304
WEBSTER, TX 77598
Harris County (281) 724-8336
FARHEEN TARIQ M.D.
Internal Medicine (Infectious Disease)
905 W MEDICAL CENTER BLVD STE 304
WEBSTER, TX 77598
Harris County (281) 724-8336
MALLIKA KAMANA MD
Internal Medicine (Infectious Disease)
905 W MEDICAL CENTER BLVD STE 304
WEBSTER, TX 77598
Harris County (281) 724-8336
DR. BACEL NSEIR M.D.
Internal Medicine (Infectious Disease)
905 W MEDICAL CENTER BLVD STE 304
WEBSTER, TX 77598
Harris County (281) 724-8336
DR. HARITA NYALAKONDA M.D.
Internal Medicine (Infectious Disease)
905 W MEDICAL CENTER BLVD STE 304
WEBSTER, TX 77598
Harris County (281) 724-8336
DR. JOHN GEORGE KNECHT III MD
Internal Medicine (Medical Oncology)
905 W MEDICAL CENTER BLVD STE 304
WEBSTER, TX 77598
Harris County (281) 724-8335
JOHNNIE LYNN MILLER
Nurse Practitioner (Acute Care)
905 W MEDICAL CENTER BLVD STE 304
WEBSTER, TX 77598
Harris County (281) 724-8336
MR. SYED W. HASAN MD
Internal Medicine (Infectious Disease)
905 W MEDICAL CENTER BLVD STE 304
WEBSTER, TX 77598
Harris County (281) 724-8336

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Eugene Chaung's NPI number?

The NPI number for Eugene Chaung is 1659715571. It was assigned to this individual provider in the NPPES registry on April 22, 2013.

Where is Eugene Chaung located?

Eugene Chaung practices at 905 W Medical Center Blvd Ste 304, Webster, TX 77598. The listed phone number is (281) 724-8336.

What is Eugene Chaung's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.

Is Eugene Chaung enrolled in Medicare?

Yes. Eugene Chaung is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Eugene Chaung's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Eugene Chaung reassigns Medicare benefits to 4 organizations: Cls Health PLLC (Webster, TX), Legacy Community Health Services, Inc (Houston, TX), Access Telecare, PLLC (Dallas, TX) and St. Vincent Hospital (Santa Fe, NM). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Eugene Chaung's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Eugene Chaung accept?

Health plans from Blue Cross and Blue Shield of Texas, Imperial Insurance Companies, Inc., Oscar Insurance Company and UnitedHealthcare list Eugene Chaung as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Eugene Chaung affiliated with any hospitals?

According to CMS data, Eugene Chaung is affiliated with Hca Houston Healthcare Clear Lake and Houston Methodist Clear Lake Hospital.

When was this NPI record last updated?

The NPPES record for Eugene Chaung was last updated on May 26, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.